* {
  margin: 0;
  padding: 0;
}
main {
  margin-top: 100px;
  text-align: center;
}
main h1 {
  text-align: center;
  margin: 2% 0;
}
main .content {
  margin: 3% 5%;
}
main .content p {
  font-size: 18px;
  line-height: 40px;
  text-align: left;
}
main .content img {
  max-width: 100%;
  height: auto;
  margin: 2% 0;
}
main .rd {
  margin: 3% 5%;
}
main .rd h4 {
  margin-top: 5%;
  font-size: 20px;
  line-height: 50px;
  text-align: left;
}
main .rd p {
  font-size: 18px;
  line-height: 40px;
  margin: 0 3%;
  text-align: left;
}
main .rd img {
  max-width: 100%;
  height: auto;
  margin: 2% 0;
}
